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 1. Mechanical Air and Compresslr properties of the base material. Tensile strength and yield strength of the weld metal should equal or exceed that of the base material. Hose Ductility and toughness at low temperatures 2 may also be important. High-temperature service requires resistance to creep. Shock loading requires impact resistance. In general, weld metal should Pack match base-material properties.2. Composition Air and Compresslr and Hose and 2 of the base material.For stainless steels, low alloy steels, nickel and copper Pack alloys, and materials Air that serve in corrosive atmospheres, chemical composition is important. Consider the Compresslr possibility Hose of electrochemical corrosion between base and weld metal of different 2 compositions. Hardfacing Pack alloys contain Air as base elements Compresslr typically Hose iron, nickel, or cobalt, to which 2 metallurgists add varying amounts of carbon, chromium, molybdenum, tungsten, silicon, manganese, vanadium, and Pack boron. To raise hardness, the primary property for wear resistance, alloy designers add elements that either form hard constituents (carbides, Air borides, or Laves phase), or that strengthen Compresslr the matrix by going into solid solution. Carbon content determines Hose toughness and 2 abrasion resistance--as carbon rises, abrasion resistance increases and toughness drops. Chromium forms carbides, Pack and Air increases corrosion resistance, Compresslr and adds high-temperature strength. Tungsten, a potent carbide former, also boosts high temperature Hose strength, as does 2 cobalt. Tougheners include nickel and manganese. Boron forms hard wear-resistance borides Pack. Searching for accessories for your air compressor? We offer the best selection of cheap air compressor accessories on the internet. Check out our website for great deales on all of our air compressor accessories!
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